发明授权
US4804398A 1-aryl-4-cyano-5-halogenopyrazoles, composition containing them, and method of using them as selective herbicides 失效
1-芳基-4-氰基-5-卤代吡唑,含有它们的组合物,以及使用它们作为选择性除草剂的方法

1-aryl-4-cyano-5-halogenopyrazoles, composition containing them, and
method of using them as selective herbicides
摘要:
Herbicidally active novel 1-phenyl-4-cyano-5-halogenopyrazoles of the formula ##STR1## in which R is hydrogen or alkyl,Hal is halogen, andAr is phenyl substituted at least once by a radical other than halogen.Intermediates of the formulas ##STR2## are also new.
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